Will is oa make knees swell like grapefruit? Severe pain no walking. Happens often. Not gout. Who do I see? Allergic nsaids aspirin. Plz advise. Thx!

An orthopedist. Or rheumatologist. Osteoarthritis is usuallly a wear and tear type of arthridity, but I have seen swelling of joints in this condition.
Rheumatologist. See a rheumatologist for diagnosis and appropriate treatment. Oa can do this but there are many other possible causes.